Biden got 50 percent of the vote, whereas Ryan earned 31 percent. Nineteen percent said it was a tie.

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Here's the full poll, which was conducted online. In terms of how this affected the topline presidential race, 33 percent of undecided voters chose Romney and 32 percent picked Obama after the debate. Pre-debate, Romney held a 5-point lead on Obama with this group. Still, 32 percent remained undecided.

Other highlights:

56 percent said Biden was best-suited to be president if necessary; 49 percent chose Ryan.

The number of voters who think Biden is "relatable" jumped to 56 percent after the debate. For Ryan, it also jumped to 48 percent.

42 percent said the debate changed their opinion of Joe Biden for the better. 38 percent said the same of Ryan.